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Finding the Fourth Proportional to 374,626.30, 561,939.45 and 372,001.90

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Solution

The fourth proportional to 374,626.30, 561,939.45 and 372,001.90 is: 558,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,626.30 : 561,939.45 = 372,001.90 : x
  2. Step 2: Convert to fraction form
    374,626.30/561,939.45 = 372,001.90/x
  3. Step 3: Cross multiply
    374,626.30x = 561,939.45 × 372,001.90
  4. Step 4: Simplify right side
    374,626.30x = 209,042,543,084.96
  5. Step 5: Solve for x
    x = 209,042,543,084.96/374,626.30
  6. Step 6: Final answer
    x = 558,002.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.